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Finding the Fourth Proportional to 373,646.36, 515,627.70 and 203,883.32

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Solution

The fourth proportional to 373,646.36, 515,627.70 and 203,883.32 is: 281,356.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,646.36 : 515,627.70 = 203,883.32 : x
  2. Step 2: Convert to fraction form
    373,646.36/515,627.70 = 203,883.32/x
  3. Step 3: Cross multiply
    373,646.36x = 515,627.70 × 203,883.32
  4. Step 4: Simplify right side
    373,646.36x = 105,127,887,359.96
  5. Step 5: Solve for x
    x = 105,127,887,359.96/373,646.36
  6. Step 6: Final answer
    x = 281,356.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.